PS8468 – DisplayPort V1.4 Dual-Mode Jitter Cleaning Demultiplexer

The PS8468 is a Dual-Mode DisplayPort repeater, or retimer, that removes signal jitter, with a built-in output demultiplexer.  It fully supports DisplayPort v1.4 up to the HBR3 link rate and HDMI 2.0 up to the 6.0Gbps TMDS™ data rate through the dual-mode function. The device integrates a jitter tolerant DisplayPort and TMDS receiver, and a jitter-cleaning DisplayPort and TMDS transmitter.  It is suitable for DisplayPort, Dual-Mode DisplayPort, and DisplayPort Alt Mode applications.  It removes the data and clock jitter and the timing skews from the DisplayPort or TMDS input to deliver a compliant and very low jitter DisplayPort or HDMI output.

The PS8468 is ideal for Source and repeater device applications including docking devices. Such requirement often exists in a Source to remove Tx jitter and/or induced media (transmission path) jitter in order to meet DisplayPort and HDMI output jitter requirements, especially at higher DisplayPort link rates or higher TMDS clock rates. It can also be used within a DisplayPort docking device to improve receiver performance margin. Signal integrity can be further optimized through the use of the PS8468’s programmable input equalization and output pre-emphasis controls.

Key Features

  • Compliant to VESA DisplayPort™ (DP) Standard version 1.4 for 1.62, 2.7, 5.4 and 8.1Gbps link rates
  • Compliant to VESA DisplayPort™ PHY Compliance Test Standard for Source and Sink devices
  • Supports Dual-Mode DP repeater applications: DP link rates up to 8.1Gbps and TMDS rates up to 6Gbps
  • Compliant to HDMI 2.0 specification up to 6.0Gbps
  • Jitter Cleaning for both DP and Dual Mode
  • CrystalFree™ technology – no external crystal or reference clock is needed
  • Automatic Link Training support – no system level support needed
  • Superior Intra-pair and Inter-pair de-skewing
  • Programmable receiver equalization to compensate for PCB and/or connector losses
  • Link training based automatic equalization adjustment for DiplayPort operation
  • Field proven AUX interception technology for DisplayPort repeating
  • Source initiated power saving management
  • Automatic power down management
  • Built-in AUX CH and DDC combiner for Dual-Mode Source repeating
  • Low power consumption
  • Pin control or optional local I2C control
  • 3.3V and 1.2V power supply
  • 5x10mm 66-pin QFN RoHS compliant and halogen-free package
  • ESD: HBM 7kV
  • 0° to 70°C operating temperature range

Applications

  • PC Desktop and Notebook Motherboards
  • Notebook Docking Stations
  • Graphics Cards